reflexive pronouns

[sanjay]

I would like to know the rules that govern the position of reflexive pronouns.
" I myself talked to the CEO" is correct or " I talked to the CEO myself"? and
"As the office boy was absent , I had to do the copying myself" is correct or " As the office boy was absent , I myself had to do the copying"
Thanks

[Tdol]

The end position is more common, but after the pronoun is also used; it can give extra emphasis.